CN106498936B - A kind of cast-in-situ bored pile mud desanding system - Google Patents
A kind of cast-in-situ bored pile mud desanding system Download PDFInfo
- Publication number
- CN106498936B CN106498936B CN201611129336.3A CN201611129336A CN106498936B CN 106498936 B CN106498936 B CN 106498936B CN 201611129336 A CN201611129336 A CN 201611129336A CN 106498936 B CN106498936 B CN 106498936B
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- China
- Prior art keywords
- mud
- cyclone
- pile foundation
- inlet pipe
- sand
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
- Cyclones (AREA)
Abstract
The present invention provides a kind of cast-in-situ bored pile mud desanding systems, it includes cyclone, cyclone is placed near pile foundation, cyclone is equipped with inlet pipe, grout outlet and sediment outflow mouth, inlet pipe is connected to cyclone apex side and is linked into mud pit by the first mud tube, inlet pipe is connected to the cyclone apex end face and is linked into pile foundation by the second mud tube, then pile foundation is linked into mud pit by pile foundation hole cleaning conduit, sediment outflow mouth is connected to the bottom of cyclone, first mud tube is equipped with slush pump, start slush pump, mud extraction in mud pit is entered in cyclone from inlet pipe, in the case where being biased to eddy flow and gravity, sand grains is separated with mud, mud flows out in pile foundation hole cleaning conduit along the grout outlet of cyclone apex, and then flow into mud pit, form mud circulation, desanding while pile foundation hole cleaning.The present invention can reduce silt content in pile foundation slurry, pile foundation slurry index is made to meet requirement under the premise of not increasing additional investment.
Description
Technical field
The invention belongs to engineering construction field more particularly to a kind of cast-in-situ bored pile mud desanding systems.
Background technique
It usually needs to pass through sand seam geology in drilled pile using mud off, suspension discharge boring mud when bored pile construction
When, since the grains of sand are thinner, the conventional construction technique grains of sand are suspended in mud and cannot precipitate rapidly, such as take no action in removal mud
The grains of sand, the excessively high bottom hole slagging that easily leads to of mud percent sand is blocked up, causes drilling quality of pile decline, useless stake is caused when serious.Separately
Outside, mud desanding also can not be excessive, and excessive desanding easily leads to collapse hole when making mud balance lower than 1.1, equally will affect drilled pile
Quality.Mud desanding at present generally uses sedimentation basin, mud purifying device etc., and using sedimentation basin, often desanding effect is poor, reaches
Less than construction quality requirement；And mud purifying device the deficiencies of that there are weight is big, volume is big, equipment cost is high, operation power consumption.
To solve the above problems, need to provide, a kind of desanding effect is ideal and low in cost, the lesser simple mud desanding dress of volume weight
It sets, to meet bored pile construction field demand.
Summary of the invention
Technical problem to be solved by the present invention lies in, a kind of cast-in-situ bored pile mud desanding system is provided, it can be not
Under the premise of increasing additional investment, silt content in cast-in-situ bored pile mud is reduced, reduces sand factor, keeps drilled pile mud index full
Sufficient requirement.
In order to solve the above-mentioned technical problems, the present invention provides a kind of cast-in-situ bored pile mud desanding systems comprising rotation
Device is flowed, the cyclone is placed near pile foundation, and the cyclone is equipped with inlet pipe, grout outlet and sediment outflow mouth, the inlet pipe
It is connected to the top-side of the cyclone and mud pit is linked by the first mud tube, the grout outlet is connected to the rotation
It flows the top end surface of device and pile foundation is linked by the second mud tube, then pile foundation is linked into mud by pile foundation hole cleaning conduit
Pond, the sediment outflow mouth are connected to the bottom of the cyclone, and first mud tube is equipped with slush pump, start slush pump, will
Mud extraction is entered in cyclone with certain flow velocity from inlet pipe in mud pit, in the case where being biased to eddy flow and gravity, sand grains
It is separated with mud, grout outlet of the small mud of specific gravity under turning effort along cyclone apex flows out to pile foundation hole cleaning conduit
It is interior, and then mud pit is flowed into, form mud circulation, desanding while pile foundation hole cleaning.
As preferred embodiments of the present invention, at least one ring flange is equipped in the middle part of the shell of the cyclone.
As preferred embodiments of the present invention, the sediment outflow mouth is equipped with sand flash valve.
As preferred embodiments of the present invention, the cast-in-situ bored pile mud desanding system further includes can be by the cyclone
The swinging mounting being obliquely installed.
Implement a kind of cast-in-situ bored pile mud desanding system of the invention, compared with prior art, has following beneficial
Effect:
(1) structure of the invention is simple, and cyclone is arranged on drilled pile mud borehole cleaning pipeline, can be while borehole cleaning
Desanding is carried out, without additional pipeline；
(2) since cyclone technology is exactly to be separated the solid-phase component (such as sand grains) in mud using centrifugal force
Technology can be effectively reduced drilled pile sand content in mud, it is ensured that sand content in mud is in specification allowed band, and then is effectively promoted
Drilled pile pile quality.
(3) cyclone can flexibly open and close desanding function, without removing cyclone from mud borehole cleaning pipeline.
(4) cyclone can be tilted when need to close desanding function, sand removing hole is made to be placed on relatively eminence, can had in this way
Effect prevents silt particle from blocking sand flash valve in cyclone building up inside.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the attached drawing to embodiment is simply situated between below
It continues.
Fig. 1 is the structural schematic diagram of cast-in-situ bored pile mud desanding system provided by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is shown in Figure 1, the preferred embodiment of the present invention, a kind of cast-in-situ bored pile mud desanding system comprising eddy flow
Device 1, the cyclone 1 are placed near pile foundation 7, the cyclone 1 be equipped with inlet pipe 2, grout outlet 3 and sediment outflow mouth 4, it is described into
Slurry pipe 2 is connected to the top-side of the cyclone 1 and is linked into mud pit 6 by the first mud tube 5, and the grout outlet 3 connects
It is connected to the top end surface of the cyclone 1 and pile foundation 7 is linked by the second mud tube 8, then pile foundation 7 is led by pile foundation hole cleaning
Pipe 9 is linked into mud pit 6, and the sediment outflow mouth 4 is connected to the bottom of the cyclone 1, and first mud tube 5 is equipped with mud
Pump 10 starts slush pump 10, mud extraction in mud pit 6 is entered in cyclone 1 with certain flow velocity from inlet pipe 2, inclined
To under eddy flow and gravity, sand grains is separated with mud, the small mud of specific gravity going out along 1 top of cyclone under turning effort
Slurry pipe 3 flows out in pile foundation hole cleaning conduit 9, and then flows into mud pit 6, forms mud circulation, removes while 7 borehole cleaning of pile foundation
Sand.It can be seen that implementing it is an advantage of the current invention that cyclone 1 is arranged clear in drilled pile mud firstly, its structure is simple
On the pipeline of hole, desanding can be carried out while borehole cleaning, without additional pipeline；Secondly as 1 technology of cyclone is exactly to utilize
The technology that centrifugal force separates the solid-phase component (such as sand grains) in mud can be effectively reduced drilled pile mud containing sand
Rate, it is ensured that sand content in mud is in specification allowed band, and then effectively promotes drilled pile pile quality；Finally, cyclone 1 can spirit
It is living to open and close desanding function, without cyclone 1 is removed from mud borehole cleaning pipeline.
It should also be noted that, since the interface direction of the grout outlet 3 is located at the top end surface of cyclone 1, thus energy
It is more advantageous to sand grains sinking.
Further, in the present embodiment, at least one ring flange 11 is equipped in the middle part of the cyclone 1, thus can be in cyclone 1
It is conveniently repaired when silting up or to clearing up inside cyclone 1, excludes cast-in-situ bored pile mud desanding device more effectively
Sand grains in mud.
Further, in the present embodiment, the sediment outflow mouth 4 is equipped with sand flash valve 12, it is possible thereby to by opening sand flash valve 12
The sand grains to precipitate is discharged from sediment outflow mouth 4, is so recycled, the mesh for reducing sand content in mud in drill-pouring stake holes is reached
's.When sand content in mud is in specification allowed band in drill-pouring stake holes, mud can also be prevented by closing sand flash valve 12
It is excessive to starch desanding.
Further, in the present embodiment, the cast-in-situ bored pile mud desanding system further includes that the cyclone 1 can incline
The swinging mounting (not indicated in figure) being tiltedly arranged.If sand content in mud arrived code requirement range in drill-pouring stake holes, only
Cyclone 1 need to be tilted by swinging mounting, make sand removing hole be placed on relatively eminence and close sand flash valve 12 can to stop removing
Sand.Thus it is possible, on the one hand, silt particle can be effectively prevent to block sand flash valve 12 in 1 building up inside of cyclone, on the other hand it is not necessarily to eddy flow
Device 1 is removed from mud circulation line, and use is more convenient.
Above disclosed is only presently preferred embodiments of the present invention, cannot limit the right of the present invention with this certainly
Range, therefore according to equivalent variations made by scope of the present invention patent, it is still within the scope of the present invention.
Claims (2)
1. a kind of cast-in-situ bored pile mud desanding system, which is characterized in that including cyclone, it is attached that the cyclone is placed in pile foundation
Closely, the cyclone is equipped with inlet pipe, grout outlet and sediment outflow mouth, and the sediment outflow mouth is equipped with sand flash valve, the inlet pipe connection
In the cyclone top-side and mud pit is linked by the first mud tube, the grout outlet is connected to the cyclone
Top end surface and pile foundation is linked by the second mud tube, then pile foundation is linked into mud pit by pile foundation hole cleaning conduit, institute
The bottom that sediment outflow mouth is connected to the cyclone is stated, first mud tube is equipped with slush pump, starts slush pump, by mud pit
Interior mud extraction is entered in cyclone with certain flow velocity from inlet pipe, in the case where being biased to eddy flow and gravity, sand grains and mud
Separation, grout outlet of the small mud of specific gravity under turning effort along cyclone apex flow out in pile foundation hole cleaning conduit, in turn
Mud pit is flowed into, mud circulation, desanding while pile foundation hole cleaning are formed；It further include having swinging mounting, the cyclone setting
On the swinging mounting, when sand content in mud arrived code requirement range, the swinging mounting energy in drill-pouring stake holes
The cyclone is tilted, so that sand removing hole is placed on relatively eminence and closes sand flash valve.
2. cast-in-situ bored pile mud desanding system as described in claim 1, which is characterized in that in the middle part of the shell of the cyclone
Equipped at least one ring flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129336.3A CN106498936B (en) | 2016-12-09 | 2016-12-09 | A kind of cast-in-situ bored pile mud desanding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611129336.3A CN106498936B (en) | 2016-12-09 | 2016-12-09 | A kind of cast-in-situ bored pile mud desanding system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106498936A CN106498936A (en) | 2017-03-15 |
| CN106498936B true CN106498936B (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611129336.3A Expired - Fee Related CN106498936B (en) | 2016-12-09 | 2016-12-09 | A kind of cast-in-situ bored pile mud desanding system |
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| CN (1) | CN106498936B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868672B (en) * | 2018-07-03 | 2024-03-08 | 上海公路桥梁（集团）有限公司 | Slurry sand filter and construction method thereof |
| CN109441381A (en) * | 2019-01-09 | 2019-03-08 | 中国建筑第四工程局有限公司 | One kind recycling construction system for clump of piles mud in water |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6119870A (en) * | 1998-09-09 | 2000-09-19 | Aec Oil Sands, L.P. | Cycloseparator for removal of coarse solids from conditioned oil sand slurries |
| CN102373703A (en) * | 2011-11-24 | 2012-03-14 | 中铁二十一局集团有限公司 | Centrifugal sand remover for bridge pile foundation construction and application method thereof |
| CN103821469B (en) * | 2014-03-17 | 2015-01-28 | 葛洲坝集团基础工程有限公司 | Slurry control method for underground slurry wall construction at high-powder-clay-content stratum |
| CN104631439B (en) * | 2014-12-31 | 2016-08-17 | 上海市机械施工集团有限公司 | A kind of Pump breath countercirculate pile foundation construction device and method |
| CN105041245A (en) * | 2015-08-07 | 2015-11-11 | 中交一公局第二工程有限公司 | Pile foundation slurry cyclone desanding apparatus |
| CN206359980U (en) * | 2016-12-09 | 2017-07-28 | 中铁六局集团广州工程有限公司 | A kind of cast-in-situ bored pile mud desanding system |
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- 2016-12-09 CN CN201611129336.3A patent/CN106498936B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN106498936A (en) | 2017-03-15 |
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Granted publication date: 20190125 Termination date: 20211209 |
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